/// <summary>
/// Process error table (if specified). We handle catches of Err using
/// a catch any (0 class index). We also need to add extra entries into
/// the exception table for special exceptions - for example NullErr get's
/// mapped as fan.sys.NullErr+Val and java.lang.NullPointerException.
/// </summary>
private void makeErrTable()
{
if (fmethod == null)
{
return;
}
FBuf ferrs = fmethod.m_attrs.m_errTable;
if (ferrs == null)
{
return;
}
int len = ferrs.m_len;
byte[] buf = ferrs.m_buf;
int count = (len - 2) / 8;
tryStart = new int[count];
tryEnd = new int[count];
tryJump = new int[count];
tryErr = new int[count];
for (int i = 2, j = 0; i < len; i += 8)
{
tryStart[j] = (buf[i + 0] & 0xFF) << 8 | (buf[i + 1] & 0xFF);
tryEnd[j] = (buf[i + 2] & 0xFF) << 8 | (buf[i + 3] & 0xFF);
tryJump[j] = (buf[i + 4] & 0xFF) << 8 | (buf[i + 5] & 0xFF);
tryErr[j] = (buf[i + 6] & 0xFF) << 8 | (buf[i + 7] & 0xFF);
j++;
}
}
/// <summary>
/// Read out the line numbers and stick them in a hashmap.
/// </summary>
private void makeLineNumbers()
{
// source file
string srcFile = parent.type.m_attrs.m_sourceFile;
if (srcFile != null)
{
code.DefaultSourceFile = SourceFile.GetSourceFile(
srcFile, // source file
System.Guid.Empty, // lang
System.Guid.Empty, // vend
System.Guid.Empty); // docu
}
// line numbers
if (fmethod == null)
{
return;
}
FBuf flines = fmethod.m_attrs.m_lineNums;
if (flines != null)
{
int len = flines.m_len;
byte[] buf = flines.m_buf;
for (int i = 2; i < len; i += 4)
{
int pc = (buf[i] & 0xFF) << 8 | (buf[i + 1] & 0xFF);
int line = (buf[i + 2] & 0xFF) << 8 | (buf[i + 3] & 0xFF);
lineNums[pc] = line;
}
}
}
public FCodeEmit(FTypeEmit parent, FBuf fcode, CILInstructions code, Reg[] regs, FTypeRef ret)
{
this.pod = parent.pod;
this.emitter = parent.emitter;
this.parent = parent;
this.buf = fcode.m_buf;
this.len = fcode.m_len;
this.code = code;
this.podClass = FanUtil.toDotnetTypeName(pod.m_podName, "$Pod", false);
this.jumps = new Jumps(code);
this.regs = regs;
this.ret = ret;
}
